## anonymous one year ago Unit 6 Rational Expression Lesson 6 Adding and subtracting Rational Expression and like denominator. Simplify n - 2 2 - n n - 2 A. 2 -n n + 2 B. -1 C. n + 2 n - 2 D. 1 my answer: C

1. anonymous

@Awolflover1 @jagr2713

2. anonymous

$\frac{ n }{ 2-n } - \frac{ 2 }{ n-2 }$

3. anonymous

4. anonymous

Yes

5. anonymous

it would really be helpful if you used the equation tool below fortunately @iambatman is good a mind reading

6. anonymous

just another superpower i guess

7. anonymous

I can't is not working on my side

8. anonymous

$\huge \frac{ a }{ b }-\frac{ c }{ d } = \frac{ ad-bc }{ bd }$ you could use this property

9. anonymous

$\frac{ n(n-2)-2(2-n) }{ (2-n)(n-2) }$

10. anonymous

just to get it out there I like that username Batman

11. anonymous

Just start simplifying now, and thanks haha :)

12. anonymous

okay ur welcome

13. anonymous

so it will be A

14. anonymous

Ehh how did you manage to get that?

15. anonymous

because I have to cancel out the ( 2 -n) and (n-2) and that what I got

16. anonymous

$\frac{ n(n-2)-2(2-n) }{ (2-n)(n-2) } \implies \frac{ n^2-2n-4+2n }{ (2-n)(n-2) }$ right?

17. anonymous

$\frac{ n^2-4 }{ (2-n)(n-2) } \implies \frac{ (n-2)(n+2) }{ (2-n)(n-2) } \implies \frac{ n+2}{ 2-n }$

18. anonymous

okay cool I have 3 more question it hard multitasking

19. anonymous

Focus on one question at a time, but if they are similar go over my work and try them out :)

20. anonymous

okay thanks so much